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Atomically dispersed MoNi alloy catalyst for partial oxidation of methane

Author

Listed:
  • Zheyuan Ding

    (Tianjin University
    Collaborative Innovation Center for Chemical Science & Engineering (Tianjin))

  • Sai Chen

    (Tianjin University
    Collaborative Innovation Center for Chemical Science & Engineering (Tianjin))

  • Tingting Yang

    (Tianjin University
    Collaborative Innovation Center for Chemical Science & Engineering (Tianjin)
    International Campus of Tianjin University)

  • Zunrong Sheng

    (Tianjin University
    Collaborative Innovation Center for Chemical Science & Engineering (Tianjin))

  • Xianhua Zhang

    (Tianjin University
    Collaborative Innovation Center for Chemical Science & Engineering (Tianjin))

  • Chunlei Pei

    (Tianjin University
    Collaborative Innovation Center for Chemical Science & Engineering (Tianjin))

  • Donglong Fu

    (Tianjin University
    Collaborative Innovation Center for Chemical Science & Engineering (Tianjin))

  • Zhi-Jian Zhao

    (Tianjin University
    Collaborative Innovation Center for Chemical Science & Engineering (Tianjin))

  • Jinlong Gong

    (Tianjin University
    Collaborative Innovation Center for Chemical Science & Engineering (Tianjin)
    International Campus of Tianjin University
    Haihe Laboratory of Sustainable Chemical Transformations)

Abstract

The catalytic partial oxidation of methane (POM) presents a promising technology for synthesizing syngas. However, it faces severe over-oxidation over catalyst surface. Attempts to modify metal surfaces by incorporating a secondary metal towards C–H bond activation of CH4 with moderate O* adsorption have remained the subject of intense research yet challenging. Herein, we report that high catalytic performance for POM can be achieved by the regulation of O* occupation in the atomically dispersed (AD) MoNi alloy, with over 95% CH4 conversion and 97% syngas selectivity at 800 °C. The combination of ex-situ/in-situ characterizations, kinetic analysis and DFT (density functional theory) calculations reveal that Mo-Ni dual sites in AD MoNi alloy afford the declined O2 poisoning on Ni sites with rarely weaken CH4 activation for partial oxidation pathway following the combustion reforming reaction (CRR) mechanism. These results underscore the effectiveness of CH4 turnovers by the design of atomically dispersed alloys with tunable O* adsorption.

Suggested Citation

  • Zheyuan Ding & Sai Chen & Tingting Yang & Zunrong Sheng & Xianhua Zhang & Chunlei Pei & Donglong Fu & Zhi-Jian Zhao & Jinlong Gong, 2024. "Atomically dispersed MoNi alloy catalyst for partial oxidation of methane," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-49038-x
    DOI: 10.1038/s41467-024-49038-x
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    References listed on IDEAS

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    1. Yu Duan & Zi-You Yu & Li Yang & Li-Rong Zheng & Chu-Tian Zhang & Xiao-Tu Yang & Fei-Yue Gao & Xiao-Long Zhang & Xingxing Yu & Ren Liu & Hong-He Ding & Chao Gu & Xu-Sheng Zheng & Lei Shi & Jun Jiang & , 2020. "Bimetallic nickel-molybdenum/tungsten nanoalloys for high-efficiency hydrogen oxidation catalysis in alkaline electrolytes," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    2. Yong Wang & Pengju Ren & Jingting Hu & Yunchuan Tu & Zhongmiao Gong & Yi Cui & Yanping Zheng & Mingshu Chen & Wujun Zhang & Chao Ma & Liang Yu & Fan Yang & Ye Wang & Xinhe Bao & Dehui Deng, 2021. "Electron penetration triggering interface activity of Pt-graphene for CO oxidation at room temperature," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
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